1db169187dea4602e4ad32058762d23d474753fd0Stephen Hines/* 2db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * Copyright 2012, The Android Open Source Project 3db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * 4db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * Licensed under the Apache License, Version 2.0 (the "License"); 5db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * you may not use this file except in compliance with the License. 6db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * You may obtain a copy of the License at 7db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * 8db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * http://www.apache.org/licenses/LICENSE-2.0 9db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * 10db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * Unless required by applicable law or agreed to in writing, software 11db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * distributed under the License is distributed on an "AS IS" BASIS, 12db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * See the License for the specific language governing permissions and 14db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * limitations under the License. 15db169187dea4602e4ad32058762d23d474753fd0Stephen Hines */ 16db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 176e9e89d1ed049ec931bb1000948c12698e6c5484Stephen Hines#include "bcc/Assert.h" 18e198abec6c5e3eab380ccf6897b0a0b9c2dd92ddStephen Hines#include "bcc/Renderscript/RSTransforms.h" 197a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao 207a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao#include <cstdlib> 217a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao 22b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines#include <llvm/IR/DerivedTypes.h> 23b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines#include <llvm/IR/Function.h> 24b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines#include <llvm/IR/Instructions.h> 25b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines#include <llvm/IR/IRBuilder.h> 2618a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser#include <llvm/IR/MDBuilder.h> 27b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines#include <llvm/IR/Module.h> 28c72c4ddfcd79c74f70713da91a69569451b5c19eZonr Chang#include <llvm/Pass.h> 297ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines#include <llvm/Support/raw_ostream.h> 30b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines#include <llvm/IR/DataLayout.h> 31cd5b657c39a348bd7652a19c5be5035e9df44a42Tobias Grosser#include <llvm/IR/Function.h> 32b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines#include <llvm/IR/Type.h> 33806075b3a54af826fea78490fb213d8a0784138eTobias Grosser#include <llvm/Transforms/Utils/BasicBlockUtils.h> 34c72c4ddfcd79c74f70713da91a69569451b5c19eZonr Chang 35c72c4ddfcd79c74f70713da91a69569451b5c19eZonr Chang#include "bcc/Config/Config.h" 36ef73a242762bcd8113b9b65ceccbe7d909b5acbcZonr Chang#include "bcc/Support/Log.h" 37db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 38d88177580db4ddedf680854c51db333c97eabc59Stephen Hines#include "bcinfo/MetadataExtractor.h" 39d88177580db4ddedf680854c51db333c97eabc59Stephen Hines 40bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes#define NUM_EXPANDED_FUNCTION_PARAMS 5 41bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 427a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liaousing namespace bcc; 437a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao 44db169187dea4602e4ad32058762d23d474753fd0Stephen Hinesnamespace { 457a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao 4614588cf0babf4596f1bcf4ea05ddd2ceb458a916Logan Chienstatic const bool gEnableRsTbaa = true; 479c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines 487a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao/* RSForEachExpandPass - This pass operates on functions that are able to be 497a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao * called via rsForEach() or "foreach_<NAME>". We create an inner loop for the 507a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao * ForEach-able function to be invoked over the appropriate data cells of the 517a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao * input/output allocations (adjusting other relevant parameters as we go). We 527a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao * support doing this for any ForEach-able compute kernels. The new function 537a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao * name is the original function name followed by ".expand". Note that we 547a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao * still generate code for the original function. 557a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao */ 567a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liaoclass RSForEachExpandPass : public llvm::ModulePass { 577a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liaoprivate: 58db169187dea4602e4ad32058762d23d474753fd0Stephen Hines static char ID; 59db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 60bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Module *Module; 61bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::LLVMContext *Context; 62bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 63bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes /* 64bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes * Pointer to LLVM type information for the ForEachStubType and the function 65bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes * signature for expanded kernels. These must be re-calculated for each 66bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes * module the pass is run on. 67bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes */ 68bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::StructType *ForEachStubType; 69bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::FunctionType *ExpandedFunctionType; 70db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 7125eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines uint32_t mExportForEachCount; 7225eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines const char **mExportForEachNameList; 7325eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines const uint32_t *mExportForEachSignatureList; 74cc366e573e31f43a6101fd6e04b90c6afdc3b7a7Stephen Hines 752b04086acbef6520ae2c54a868b1271abf053122Stephen Hines // Turns on optimization of allocation stride values. 762b04086acbef6520ae2c54a868b1271abf053122Stephen Hines bool mEnableStepOpt; 772b04086acbef6520ae2c54a868b1271abf053122Stephen Hines 78bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes uint32_t getRootSignature(llvm::Function *Function) { 79db169187dea4602e4ad32058762d23d474753fd0Stephen Hines const llvm::NamedMDNode *ExportForEachMetadata = 80bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes Module->getNamedMetadata("#rs_export_foreach"); 81db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 82db169187dea4602e4ad32058762d23d474753fd0Stephen Hines if (!ExportForEachMetadata) { 83db169187dea4602e4ad32058762d23d474753fd0Stephen Hines llvm::SmallVector<llvm::Type*, 8> RootArgTys; 84bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes for (llvm::Function::arg_iterator B = Function->arg_begin(), 85bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes E = Function->arg_end(); 86db169187dea4602e4ad32058762d23d474753fd0Stephen Hines B != E; 87db169187dea4602e4ad32058762d23d474753fd0Stephen Hines ++B) { 88db169187dea4602e4ad32058762d23d474753fd0Stephen Hines RootArgTys.push_back(B->getType()); 89db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 90db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 91db169187dea4602e4ad32058762d23d474753fd0Stephen Hines // For pre-ICS bitcode, we may not have signature information. In that 92db169187dea4602e4ad32058762d23d474753fd0Stephen Hines // case, we use the size of the RootArgTys to select the number of 93db169187dea4602e4ad32058762d23d474753fd0Stephen Hines // arguments. 94db169187dea4602e4ad32058762d23d474753fd0Stephen Hines return (1 << RootArgTys.size()) - 1; 95db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 96db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 977ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines if (ExportForEachMetadata->getNumOperands() == 0) { 987ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines return 0; 997ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines } 1007ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 1016e9e89d1ed049ec931bb1000948c12698e6c5484Stephen Hines bccAssert(ExportForEachMetadata->getNumOperands() > 0); 102db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 103cc366e573e31f43a6101fd6e04b90c6afdc3b7a7Stephen Hines // We only handle the case for legacy root() functions here, so this is 104cc366e573e31f43a6101fd6e04b90c6afdc3b7a7Stephen Hines // hard-coded to look at only the first such function. 105db169187dea4602e4ad32058762d23d474753fd0Stephen Hines llvm::MDNode *SigNode = ExportForEachMetadata->getOperand(0); 106db169187dea4602e4ad32058762d23d474753fd0Stephen Hines if (SigNode != NULL && SigNode->getNumOperands() == 1) { 107db169187dea4602e4ad32058762d23d474753fd0Stephen Hines llvm::Value *SigVal = SigNode->getOperand(0); 108db169187dea4602e4ad32058762d23d474753fd0Stephen Hines if (SigVal->getValueID() == llvm::Value::MDStringVal) { 109db169187dea4602e4ad32058762d23d474753fd0Stephen Hines llvm::StringRef SigString = 110db169187dea4602e4ad32058762d23d474753fd0Stephen Hines static_cast<llvm::MDString*>(SigVal)->getString(); 111db169187dea4602e4ad32058762d23d474753fd0Stephen Hines uint32_t Signature = 0; 112db169187dea4602e4ad32058762d23d474753fd0Stephen Hines if (SigString.getAsInteger(10, Signature)) { 113db169187dea4602e4ad32058762d23d474753fd0Stephen Hines ALOGE("Non-integer signature value '%s'", SigString.str().c_str()); 114db169187dea4602e4ad32058762d23d474753fd0Stephen Hines return 0; 115db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 116db169187dea4602e4ad32058762d23d474753fd0Stephen Hines return Signature; 117db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 118db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 119db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 120db169187dea4602e4ad32058762d23d474753fd0Stephen Hines return 0; 121db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 122db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 1234839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray bool isStepOptSupported(llvm::Type *AllocType) { 1244839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray 1254839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray llvm::PointerType *PT = llvm::dyn_cast<llvm::PointerType>(AllocType); 1264839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray llvm::Type *VoidPtrTy = llvm::Type::getInt8PtrTy(*Context); 1274839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray 1284839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray if (mEnableStepOpt) { 1294839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray return false; 1304839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray } 1314839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray 1324839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray if (AllocType == VoidPtrTy) { 1334839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray return false; 1344839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray } 1354839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray 1364839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray if (!PT) { 1374839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray return false; 1384839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray } 1394839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray 1404839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray // remaining conditions are 64-bit only 1414839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray if (VoidPtrTy->getPrimitiveSizeInBits() == 32) { 1424839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray return true; 1434839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray } 1444839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray 1454839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray // coerce suggests an upconverted struct type, which we can't support 1464839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray if (AllocType->getStructName().find("coerce") != llvm::StringRef::npos) { 1474839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray return false; 1484839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray } 1494839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray 1504839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray // 2xi64 and i128 suggest an upconverted struct type, which are also unsupported 1514839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray llvm::Type *V2xi64Ty = llvm::VectorType::get(llvm::Type::getInt64Ty(*Context), 2); 1524839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray llvm::Type *Int128Ty = llvm::Type::getIntNTy(*Context, 128); 1534839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray if (AllocType == V2xi64Ty || AllocType == Int128Ty) { 1544839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray return false; 1554839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray } 1564839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray 1574839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray return true; 1584839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray } 1594839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray 1602b04086acbef6520ae2c54a868b1271abf053122Stephen Hines // Get the actual value we should use to step through an allocation. 1617b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser // 1627b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser // Normally the value we use to step through an allocation is given to us by 1637b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser // the driver. However, for certain primitive data types, we can derive an 1647b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser // integer constant for the step value. We use this integer constant whenever 1657b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser // possible to allow further compiler optimizations to take place. 1667b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser // 167b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines // DL - Target Data size/layout information. 1682b04086acbef6520ae2c54a868b1271abf053122Stephen Hines // T - Type of allocation (should be a pointer). 1692b04086acbef6520ae2c54a868b1271abf053122Stephen Hines // OrigStep - Original step increment (root.expand() input from driver). 170bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *getStepValue(llvm::DataLayout *DL, llvm::Type *AllocType, 1712b04086acbef6520ae2c54a868b1271abf053122Stephen Hines llvm::Value *OrigStep) { 172b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines bccAssert(DL); 173bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes bccAssert(AllocType); 1742b04086acbef6520ae2c54a868b1271abf053122Stephen Hines bccAssert(OrigStep); 175bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::PointerType *PT = llvm::dyn_cast<llvm::PointerType>(AllocType); 1764839c9acf4e935dab0b3de3fac0e315d00c3a369Tim Murray if (isStepOptSupported(AllocType)) { 1772b04086acbef6520ae2c54a868b1271abf053122Stephen Hines llvm::Type *ET = PT->getElementType(); 178b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines uint64_t ETSize = DL->getTypeAllocSize(ET); 179bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Type *Int32Ty = llvm::Type::getInt32Ty(*Context); 1802b04086acbef6520ae2c54a868b1271abf053122Stephen Hines return llvm::ConstantInt::get(Int32Ty, ETSize); 1812b04086acbef6520ae2c54a868b1271abf053122Stephen Hines } else { 1822b04086acbef6520ae2c54a868b1271abf053122Stephen Hines return OrigStep; 1832b04086acbef6520ae2c54a868b1271abf053122Stephen Hines } 1842b04086acbef6520ae2c54a868b1271abf053122Stephen Hines } 1852b04086acbef6520ae2c54a868b1271abf053122Stephen Hines 186bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes /// @brief Builds the types required by the pass for the given context. 187bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes void buildTypes(void) { 188bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes // Create the RsForEachStubParam struct. 189bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 190bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Type *VoidPtrTy = llvm::Type::getInt8PtrTy(*Context); 191bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Type *Int32Ty = llvm::Type::getInt32Ty(*Context); 192db169187dea4602e4ad32058762d23d474753fd0Stephen Hines /* Defined in frameworks/base/libs/rs/rs_hal.h: 193db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * 194db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * struct RsForEachStubParamStruct { 195db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * const void *in; 196db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * void *out; 197db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * const void *usr; 198bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes * uint32_t usr_len; 199db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * uint32_t x; 200db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * uint32_t y; 201db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * uint32_t z; 202db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * uint32_t lod; 203db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * enum RsAllocationCubemapFace face; 204db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * uint32_t ar[16]; 205881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes * const void **ins; 206881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes * uint32_t *eStrideIns; 207db169187dea4602e4ad32058762d23d474753fd0Stephen Hines * }; 208db169187dea4602e4ad32058762d23d474753fd0Stephen Hines */ 209bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::SmallVector<llvm::Type*, 16> StructTypes; 210bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes StructTypes.push_back(VoidPtrTy); // const void *in 211bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes StructTypes.push_back(VoidPtrTy); // void *out 212bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes StructTypes.push_back(VoidPtrTy); // const void *usr 213bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes StructTypes.push_back(Int32Ty); // uint32_t usr_len 214bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes StructTypes.push_back(Int32Ty); // uint32_t x 215bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes StructTypes.push_back(Int32Ty); // uint32_t y 216bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes StructTypes.push_back(Int32Ty); // uint32_t z 217bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes StructTypes.push_back(Int32Ty); // uint32_t lod 218bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes StructTypes.push_back(Int32Ty); // enum RsAllocationCubemapFace 219bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes StructTypes.push_back(llvm::ArrayType::get(Int32Ty, 16)); // uint32_t ar[16] 220bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 221881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes StructTypes.push_back(llvm::PointerType::getUnqual(VoidPtrTy)); // const void **ins 222881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes StructTypes.push_back(Int32Ty->getPointerTo()); // uint32_t *eStrideIns 223881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 224bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ForEachStubType = 225bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::StructType::create(StructTypes, "RsForEachStubParamStruct"); 226bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 227bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes // Create the function type for expanded kernels. 228bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 229bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Type *ForEachStubPtrTy = ForEachStubType->getPointerTo(); 230bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 231bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::SmallVector<llvm::Type*, 8> ParamTypes; 232bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ParamTypes.push_back(ForEachStubPtrTy); // const RsForEachStubParamStruct *p 233bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ParamTypes.push_back(Int32Ty); // uint32_t x1 234bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ParamTypes.push_back(Int32Ty); // uint32_t x2 235bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ParamTypes.push_back(Int32Ty); // uint32_t instep 236bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ParamTypes.push_back(Int32Ty); // uint32_t outstep 237bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 238bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ExpandedFunctionType = llvm::FunctionType::get(llvm::Type::getVoidTy(*Context), 239bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ParamTypes, 240bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes false); 2418ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser } 2428ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser 243357b58691936bef425bd315c13a2d8019d7e9c7eTobias Grosser /// @brief Create skeleton of the expanded function. 244357b58691936bef425bd315c13a2d8019d7e9c7eTobias Grosser /// 245357b58691936bef425bd315c13a2d8019d7e9c7eTobias Grosser /// This creates a function with the following signature: 246357b58691936bef425bd315c13a2d8019d7e9c7eTobias Grosser /// 247357b58691936bef425bd315c13a2d8019d7e9c7eTobias Grosser /// void (const RsForEachStubParamStruct *p, uint32_t x1, uint32_t x2, 248357b58691936bef425bd315c13a2d8019d7e9c7eTobias Grosser /// uint32_t instep, uint32_t outstep) 249357b58691936bef425bd315c13a2d8019d7e9c7eTobias Grosser /// 250357b58691936bef425bd315c13a2d8019d7e9c7eTobias Grosser llvm::Function *createEmptyExpandedFunction(llvm::StringRef OldName) { 251bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Function *ExpandedFunction = 252bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Function::Create(ExpandedFunctionType, 253bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::GlobalValue::ExternalLinkage, 254bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes OldName + ".expand", Module); 255bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 256bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes bccAssert(ExpandedFunction->arg_size() == NUM_EXPANDED_FUNCTION_PARAMS); 257bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 258bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Function::arg_iterator AI = ExpandedFunction->arg_begin(); 259bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 260bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes (AI++)->setName("p"); 261bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes (AI++)->setName("x1"); 262bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes (AI++)->setName("x2"); 263bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes (AI++)->setName("arg_instep"); 264bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes (AI++)->setName("arg_outstep"); 265bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 266bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::BasicBlock *Begin = llvm::BasicBlock::Create(*Context, "Begin", 267bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ExpandedFunction); 268806075b3a54af826fea78490fb213d8a0784138eTobias Grosser llvm::IRBuilder<> Builder(Begin); 269806075b3a54af826fea78490fb213d8a0784138eTobias Grosser Builder.CreateRetVoid(); 270806075b3a54af826fea78490fb213d8a0784138eTobias Grosser 271bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes return ExpandedFunction; 272357b58691936bef425bd315c13a2d8019d7e9c7eTobias Grosser } 273357b58691936bef425bd315c13a2d8019d7e9c7eTobias Grosser 274e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// @brief Create an empty loop 275e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// 276e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// Create a loop of the form: 277e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// 278e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// for (i = LowerBound; i < UpperBound; i++) 279e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// ; 280e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// 281e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// After the loop has been created, the builder is set such that 282e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// instructions can be added to the loop body. 283e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// 284e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// @param Builder The builder to use to build this loop. The current 285e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// position of the builder is the position the loop 286e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// will be inserted. 287e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// @param LowerBound The first value of the loop iterator 288e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// @param UpperBound The maximal value of the loop iterator 289e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// @param LoopIV A reference that will be set to the loop iterator. 290e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser /// @return The BasicBlock that will be executed after the loop. 291e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::BasicBlock *createLoop(llvm::IRBuilder<> &Builder, 292e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::Value *LowerBound, 293e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::Value *UpperBound, 294e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::PHINode **LoopIV) { 295e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser assert(LowerBound->getType() == UpperBound->getType()); 296e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser 297e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::BasicBlock *CondBB, *AfterBB, *HeaderBB; 298e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::Value *Cond, *IVNext; 299e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::PHINode *IV; 300e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser 301e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser CondBB = Builder.GetInsertBlock(); 302e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser AfterBB = llvm::SplitBlock(CondBB, Builder.GetInsertPoint(), this); 303bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes HeaderBB = llvm::BasicBlock::Create(*Context, "Loop", CondBB->getParent()); 304e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser 305e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser // if (LowerBound < Upperbound) 306e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser // goto LoopHeader 307e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser // else 308e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser // goto AfterBB 309e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser CondBB->getTerminator()->eraseFromParent(); 310e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser Builder.SetInsertPoint(CondBB); 311e87a0518647d1f9c5249d6990c67737e0fb579e9Tobias Grosser Cond = Builder.CreateICmpULT(LowerBound, UpperBound); 312e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser Builder.CreateCondBr(Cond, HeaderBB, AfterBB); 313e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser 314e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser // iv = PHI [CondBB -> LowerBound], [LoopHeader -> NextIV ] 315e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser // iv.next = iv + 1 316e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser // if (iv.next < Upperbound) 317e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser // goto LoopHeader 318e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser // else 319e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser // goto AfterBB 320e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser Builder.SetInsertPoint(HeaderBB); 321e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser IV = Builder.CreatePHI(LowerBound->getType(), 2, "X"); 322e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser IV->addIncoming(LowerBound, CondBB); 323e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser IVNext = Builder.CreateNUWAdd(IV, Builder.getInt32(1)); 324e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser IV->addIncoming(IVNext, HeaderBB); 325e87a0518647d1f9c5249d6990c67737e0fb579e9Tobias Grosser Cond = Builder.CreateICmpULT(IVNext, UpperBound); 326e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser Builder.CreateCondBr(Cond, HeaderBB, AfterBB); 327e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser AfterBB->setName("Exit"); 328e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser Builder.SetInsertPoint(HeaderBB->getFirstNonPHI()); 329e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser *LoopIV = IV; 330e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser return AfterBB; 331e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser } 332e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser 3338ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosserpublic: 33425eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines RSForEachExpandPass(bool pEnableStepOpt) 335bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes : ModulePass(ID), Module(NULL), Context(NULL), 336bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes mEnableStepOpt(pEnableStepOpt) { 337bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 3388ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser } 3398ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser 3408ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser /* Performs the actual optimization on a selected function. On success, the 3418ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser * Module will contain a new function of the name "<NAME>.expand" that 3428ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser * invokes <NAME>() in a loop with the appropriate parameters. 3438ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser */ 344bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes bool ExpandFunction(llvm::Function *Function, uint32_t Signature) { 345bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ALOGV("Expanding ForEach-able Function %s", 346bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes Function->getName().str().c_str()); 3478ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser 3488ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser if (!Signature) { 349bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes Signature = getRootSignature(Function); 3508ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser if (!Signature) { 3518ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser // We couldn't determine how to expand this function based on its 3528ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser // function signature. 3538ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser return false; 3548ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser } 3558ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser } 3568ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser 357bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::DataLayout DL(Module); 3588ae4607d2dc5bc655d0c9225565d36ce2ebfc798Tobias Grosser 359bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Function *ExpandedFunction = 360bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes createEmptyExpandedFunction(Function->getName()); 361db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 362bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes bccAssert(ExpandedFunction->arg_size() == NUM_EXPANDED_FUNCTION_PARAMS); 363db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 364bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes /* 365bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes * Extract the expanded function's parameters. It is guaranteed by 366bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes * createEmptyExpandedFunction that there will be five parameters. 367bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes */ 368bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Function::arg_iterator ExpandedFunctionArgIter = 369bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ExpandedFunction->arg_begin(); 370db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 371bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *Arg_p = &*(ExpandedFunctionArgIter++); 372bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *Arg_x1 = &*(ExpandedFunctionArgIter++); 373bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *Arg_x2 = &*(ExpandedFunctionArgIter++); 374bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *Arg_instep = &*(ExpandedFunctionArgIter++); 375bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *Arg_outstep = &*ExpandedFunctionArgIter; 376bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 377bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *InStep = NULL; 3782b04086acbef6520ae2c54a868b1271abf053122Stephen Hines llvm::Value *OutStep = NULL; 379db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 380db169187dea4602e4ad32058762d23d474753fd0Stephen Hines // Construct the actual function body. 381bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::IRBuilder<> Builder(ExpandedFunction->getEntryBlock().begin()); 382db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 383cc366e573e31f43a6101fd6e04b90c6afdc3b7a7Stephen Hines // Collect and construct the arguments for the kernel(). 384db169187dea4602e4ad32058762d23d474753fd0Stephen Hines // Note that we load any loop-invariant arguments before entering the Loop. 385bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Function::arg_iterator FunctionArgIter = Function->arg_begin(); 386db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 387db169187dea4602e4ad32058762d23d474753fd0Stephen Hines llvm::Type *InTy = NULL; 388ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser llvm::Value *InBasePtr = NULL; 389d88177580db4ddedf680854c51db333c97eabc59Stephen Hines if (bcinfo::MetadataExtractor::hasForEachSignatureIn(Signature)) { 390bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes InTy = (FunctionArgIter++)->getType(); 391b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines InStep = getStepValue(&DL, InTy, Arg_instep); 3922b04086acbef6520ae2c54a868b1271abf053122Stephen Hines InStep->setName("instep"); 393ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser InBasePtr = Builder.CreateLoad(Builder.CreateStructGEP(Arg_p, 0)); 394db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 395db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 396db169187dea4602e4ad32058762d23d474753fd0Stephen Hines llvm::Type *OutTy = NULL; 39702f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser llvm::Value *OutBasePtr = NULL; 398d88177580db4ddedf680854c51db333c97eabc59Stephen Hines if (bcinfo::MetadataExtractor::hasForEachSignatureOut(Signature)) { 399bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes OutTy = (FunctionArgIter++)->getType(); 400b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines OutStep = getStepValue(&DL, OutTy, Arg_outstep); 4012b04086acbef6520ae2c54a868b1271abf053122Stephen Hines OutStep->setName("outstep"); 40202f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser OutBasePtr = Builder.CreateLoad(Builder.CreateStructGEP(Arg_p, 1)); 403db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 404db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 405db169187dea4602e4ad32058762d23d474753fd0Stephen Hines llvm::Value *UsrData = NULL; 406d88177580db4ddedf680854c51db333c97eabc59Stephen Hines if (bcinfo::MetadataExtractor::hasForEachSignatureUsrData(Signature)) { 407bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Type *UsrDataTy = (FunctionArgIter++)->getType(); 408db169187dea4602e4ad32058762d23d474753fd0Stephen Hines UsrData = Builder.CreatePointerCast(Builder.CreateLoad( 409db169187dea4602e4ad32058762d23d474753fd0Stephen Hines Builder.CreateStructGEP(Arg_p, 2)), UsrDataTy); 410db169187dea4602e4ad32058762d23d474753fd0Stephen Hines UsrData->setName("UsrData"); 411db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 412db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 413d88177580db4ddedf680854c51db333c97eabc59Stephen Hines if (bcinfo::MetadataExtractor::hasForEachSignatureX(Signature)) { 414bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes FunctionArgIter++; 415db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 416db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 417db169187dea4602e4ad32058762d23d474753fd0Stephen Hines llvm::Value *Y = NULL; 418d88177580db4ddedf680854c51db333c97eabc59Stephen Hines if (bcinfo::MetadataExtractor::hasForEachSignatureY(Signature)) { 419db169187dea4602e4ad32058762d23d474753fd0Stephen Hines Y = Builder.CreateLoad(Builder.CreateStructGEP(Arg_p, 5), "Y"); 420bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes FunctionArgIter++; 421db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 422db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 423bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes bccAssert(FunctionArgIter == Function->arg_end()); 424db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 425e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::PHINode *IV; 426e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser createLoop(Builder, Arg_x1, Arg_x2, &IV); 427db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 428cc366e573e31f43a6101fd6e04b90c6afdc3b7a7Stephen Hines // Populate the actual call to kernel(). 429db169187dea4602e4ad32058762d23d474753fd0Stephen Hines llvm::SmallVector<llvm::Value*, 8> RootArgs; 430db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 431bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *InPtr = NULL; 4327ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines llvm::Value *OutPtr = NULL; 433db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 434ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser // Calculate the current input and output pointers 43502f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser // 436ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser // We always calculate the input/output pointers with a GEP operating on i8 43702f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser // values and only cast at the very end to OutTy. This is because the step 43802f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser // between two values is given in bytes. 43902f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser // 44002f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser // TODO: We could further optimize the output by using a GEP operation of 44102f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser // type 'OutTy' in cases where the element type of the allocation allows. 44202f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser if (OutBasePtr) { 44302f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser llvm::Value *OutOffset = Builder.CreateSub(IV, Arg_x1); 44402f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser OutOffset = Builder.CreateMul(OutOffset, OutStep); 44502f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser OutPtr = Builder.CreateGEP(OutBasePtr, OutOffset); 44602f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser OutPtr = Builder.CreatePointerCast(OutPtr, OutTy); 44702f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser } 448bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 449ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser if (InBasePtr) { 450ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser llvm::Value *InOffset = Builder.CreateSub(IV, Arg_x1); 451ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser InOffset = Builder.CreateMul(InOffset, InStep); 452ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser InPtr = Builder.CreateGEP(InBasePtr, InOffset); 453ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser InPtr = Builder.CreatePointerCast(InPtr, InTy); 454ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser } 45502f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser 456ae937ec9658c219a38d9d631d2569f19e21b50c0Tobias Grosser if (InPtr) { 4577ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines RootArgs.push_back(InPtr); 458db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 459db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 46002f3cd69a4103f91a51a2f988f2179c885d734b5Tobias Grosser if (OutPtr) { 4617ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines RootArgs.push_back(OutPtr); 462db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 463db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 464db169187dea4602e4ad32058762d23d474753fd0Stephen Hines if (UsrData) { 465db169187dea4602e4ad32058762d23d474753fd0Stephen Hines RootArgs.push_back(UsrData); 466db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 467db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 468e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::Value *X = IV; 469d88177580db4ddedf680854c51db333c97eabc59Stephen Hines if (bcinfo::MetadataExtractor::hasForEachSignatureX(Signature)) { 470db169187dea4602e4ad32058762d23d474753fd0Stephen Hines RootArgs.push_back(X); 471db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 472db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 473db169187dea4602e4ad32058762d23d474753fd0Stephen Hines if (Y) { 474db169187dea4602e4ad32058762d23d474753fd0Stephen Hines RootArgs.push_back(Y); 475db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 476db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 477bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes Builder.CreateCall(Function, RootArgs); 478db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 4797ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines return true; 4807ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines } 4817ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 4827ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines /* Expand a pass-by-value kernel. 4837ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines */ 484bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes bool ExpandKernel(llvm::Function *Function, uint32_t Signature) { 485d88177580db4ddedf680854c51db333c97eabc59Stephen Hines bccAssert(bcinfo::MetadataExtractor::hasForEachSignatureKernel(Signature)); 486bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ALOGV("Expanding kernel Function %s", Function->getName().str().c_str()); 4877ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 4887ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines // TODO: Refactor this to share functionality with ExpandFunction. 489bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::DataLayout DL(Module); 4907ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 491bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Function *ExpandedFunction = 492bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes createEmptyExpandedFunction(Function->getName()); 4937ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 494bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes /* 495bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes * Extract the expanded function's parameters. It is guaranteed by 496bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes * createEmptyExpandedFunction that there will be five parameters. 497bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes */ 498881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 499881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes bccAssert(ExpandedFunction->arg_size() == NUM_EXPANDED_FUNCTION_PARAMS); 500881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 501bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Function::arg_iterator ExpandedFunctionArgIter = 502bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes ExpandedFunction->arg_begin(); 503bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 504bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *Arg_p = &*(ExpandedFunctionArgIter++); 505bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *Arg_x1 = &*(ExpandedFunctionArgIter++); 506bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *Arg_x2 = &*(ExpandedFunctionArgIter++); 507bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *Arg_instep = &*(ExpandedFunctionArgIter++); 508bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *Arg_outstep = &*ExpandedFunctionArgIter; 5097ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 5107ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines // Construct the actual function body. 511bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::IRBuilder<> Builder(ExpandedFunction->getEntryBlock().begin()); 5127ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 51318a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // Create TBAA meta-data. 51418a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser llvm::MDNode *TBAARenderScript, *TBAAAllocation, *TBAAPointer; 515bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::MDBuilder MDHelper(*Context); 51614588cf0babf4596f1bcf4ea05ddd2ceb458a916Logan Chien 51718a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser TBAARenderScript = MDHelper.createTBAARoot("RenderScript TBAA"); 51814588cf0babf4596f1bcf4ea05ddd2ceb458a916Logan Chien TBAAAllocation = MDHelper.createTBAAScalarTypeNode("allocation", TBAARenderScript); 51914588cf0babf4596f1bcf4ea05ddd2ceb458a916Logan Chien TBAAAllocation = MDHelper.createTBAAStructTagNode(TBAAAllocation, TBAAAllocation, 0); 52014588cf0babf4596f1bcf4ea05ddd2ceb458a916Logan Chien TBAAPointer = MDHelper.createTBAAScalarTypeNode("pointer", TBAARenderScript); 52114588cf0babf4596f1bcf4ea05ddd2ceb458a916Logan Chien TBAAPointer = MDHelper.createTBAAStructTagNode(TBAAPointer, TBAAPointer, 0); 52218a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 523881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes /* 524881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes * Collect and construct the arguments for the kernel(). 525881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes * 526881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes * Note that we load any loop-invariant arguments before entering the Loop. 527881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes */ 528881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes size_t NumInputs = Function->arg_size(); 5297ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 530881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *Y = NULL; 531881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes if (bcinfo::MetadataExtractor::hasForEachSignatureY(Signature)) { 532881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes Y = Builder.CreateLoad(Builder.CreateStructGEP(Arg_p, 5), "Y"); 533881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes --NumInputs; 534881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes } 535881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 536881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes if (bcinfo::MetadataExtractor::hasForEachSignatureX(Signature)) { 537881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes --NumInputs; 538881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes } 539881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 540881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // No usrData parameter on kernels. 541881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes bccAssert( 542881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes !bcinfo::MetadataExtractor::hasForEachSignatureUsrData(Signature)); 543881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 544881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Function::arg_iterator ArgIter = Function->arg_begin(); 545881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 546881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // Check the return type 547881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Type *OutTy = NULL; 548881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *OutStep = NULL; 54918a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser llvm::LoadInst *OutBasePtr = NULL; 550881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 551881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes bool PassOutByReference = false; 552881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 553d88177580db4ddedf680854c51db333c97eabc59Stephen Hines if (bcinfo::MetadataExtractor::hasForEachSignatureOut(Signature)) { 554bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Type *OutBaseTy = Function->getReturnType(); 555881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 55674a4b08235990916911b8fe758d656c1171faf26Stephen Hines if (OutBaseTy->isVoidTy()) { 55774a4b08235990916911b8fe758d656c1171faf26Stephen Hines PassOutByReference = true; 558881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes OutTy = ArgIter->getType(); 559881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 560881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes ArgIter++; 561881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes --NumInputs; 56274a4b08235990916911b8fe758d656c1171faf26Stephen Hines } else { 56374a4b08235990916911b8fe758d656c1171faf26Stephen Hines // We don't increment Args, since we are using the actual return type. 564881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes OutTy = OutBaseTy->getPointerTo(); 56574a4b08235990916911b8fe758d656c1171faf26Stephen Hines } 566881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 567b730e239619a546d93e5926ea92d698ab77ec7f6Stephen Hines OutStep = getStepValue(&DL, OutTy, Arg_outstep); 56874a4b08235990916911b8fe758d656c1171faf26Stephen Hines OutStep->setName("outstep"); 5697b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser OutBasePtr = Builder.CreateLoad(Builder.CreateStructGEP(Arg_p, 1)); 5709c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines if (gEnableRsTbaa) { 5719c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines OutBasePtr->setMetadata("tbaa", TBAAPointer); 5729c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines } 57374a4b08235990916911b8fe758d656c1171faf26Stephen Hines } 57474a4b08235990916911b8fe758d656c1171faf26Stephen Hines 575881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::SmallVector<llvm::Type*, 8> InTypes; 576881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::SmallVector<llvm::Value*, 8> InSteps; 577881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::SmallVector<llvm::LoadInst*, 8> InBasePtrs; 578c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes llvm::SmallVector<bool, 8> InIsStructPointer; 579881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 580881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes if (NumInputs == 1) { 581c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes llvm::Type *InType = ArgIter->getType(); 582c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes 583c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes /* 584c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * AArch64 calling dictate that structs of sufficient size get passed by 585c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * poiter instead of passed by value. This, combined with the fact that 586c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * we don't allow kernels to operate on pointer data means that if we see 587c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * a kernel with a pointer parameter we know that it is struct input that 588c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * has been promoted. As such we don't need to convert its type to a 589c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * pointer. Later we will need to know to avoid a load, so we save this 590c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * information in InIsStructPointer. 591c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes */ 592c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes if (!InType->isPointerTy()) { 593c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes InType = InType->getPointerTo(); 594c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes InIsStructPointer.push_back(false); 595c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes } else { 596c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes InIsStructPointer.push_back(true); 597c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes } 598c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes 599881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *InStep = getStepValue(&DL, InType, Arg_instep); 600881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 6017ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines InStep->setName("instep"); 602881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 603881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *Input = Builder.CreateStructGEP(Arg_p, 0); 604881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::LoadInst *InBasePtr = Builder.CreateLoad(Input, "input_base"); 605881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 6069c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines if (gEnableRsTbaa) { 6079c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines InBasePtr->setMetadata("tbaa", TBAAPointer); 6089c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines } 6097ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 610881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes InTypes.push_back(InType); 611881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes InSteps.push_back(InStep); 612881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes InBasePtrs.push_back(InBasePtr); 6137ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 614881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes } else if (NumInputs > 1) { 615881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *InsMember = Builder.CreateStructGEP(Arg_p, 10); 616881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::LoadInst *InsBasePtr = Builder.CreateLoad(InsMember, 617881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes "inputs_base"); 6187ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 619881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *InStepsMember = Builder.CreateStructGEP(Arg_p, 11); 620881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::LoadInst *InStepsBase = Builder.CreateLoad(InStepsMember, 621881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes "insteps_base"); 622881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 623881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes for (size_t InputIndex = 0; InputIndex < NumInputs; 624881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes ++InputIndex, ArgIter++) { 625881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 626881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *IndexVal = Builder.getInt32(InputIndex); 627881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 628881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *InStepAddr = Builder.CreateGEP(InStepsBase, IndexVal); 629881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::LoadInst *InStepArg = Builder.CreateLoad(InStepAddr, 630881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes "instep_addr"); 631881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 632c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes llvm::Type *InType = ArgIter->getType(); 633c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes 634c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes /* 635c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * AArch64 calling dictate that structs of sufficient size get passed by 636c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * poiter instead of passed by value. This, combined with the fact that 637c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * we don't allow kernels to operate on pointer data means that if we 638c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * see a kernel with a pointer parameter we know that it is struct input 639c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * that has been promoted. As such we don't need to convert its type to 640c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * a pointer. Later we will need to know to avoid a load, so we save 641c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes * this information in InIsStructPointer. 642c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes */ 643c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes if (!InType->isPointerTy()) { 644c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes InType = InType->getPointerTo(); 645c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes InIsStructPointer.push_back(false); 646c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes } else { 647c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes InIsStructPointer.push_back(true); 648c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes } 649c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes 650881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *InStep = getStepValue(&DL, InType, InStepArg); 651881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 652881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes InStep->setName("instep"); 653881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 654881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *InputAddr = Builder.CreateGEP(InsBasePtr, IndexVal); 655881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::LoadInst *InBasePtr = Builder.CreateLoad(InputAddr, 656881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes "input_base"); 6577ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 658881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes if (gEnableRsTbaa) { 659881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes InBasePtr->setMetadata("tbaa", TBAAPointer); 660881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes } 661881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 662881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes InTypes.push_back(InType); 663881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes InSteps.push_back(InStep); 664881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes InBasePtrs.push_back(InBasePtr); 665881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes } 666881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes } 6677ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 668e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::PHINode *IV; 669e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser createLoop(Builder, Arg_x1, Arg_x2, &IV); 6707ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 6717ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines // Populate the actual call to kernel(). 6727ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines llvm::SmallVector<llvm::Value*, 8> RootArgs; 6737ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 6744102bec56151fb5d9c962fb298412f34a6eacaa8Tobias Grosser // Calculate the current input and output pointers 6757b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser // 6767b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser // 677881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // We always calculate the input/output pointers with a GEP operating on i8 678881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // values combined with a multiplication and only cast at the very end to 679881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // OutTy. This is to account for dynamic stepping sizes when the value 680881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // isn't apparent at compile time. In the (very common) case when we know 681881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // the step size at compile time, due to haveing complete type information 682881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // this multiplication will optmized out and produces code equivalent to a 683881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // a GEP on a pointer of the correct type. 684881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 685881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // Output 686881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 687881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *OutPtr = NULL; 6887b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser if (OutBasePtr) { 6897b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser llvm::Value *OutOffset = Builder.CreateSub(IV, Arg_x1); 690881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 6917b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser OutOffset = Builder.CreateMul(OutOffset, OutStep); 692881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes OutPtr = Builder.CreateGEP(OutBasePtr, OutOffset); 693881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes OutPtr = Builder.CreatePointerCast(OutPtr, OutTy); 694bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 695881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes if (PassOutByReference) { 696881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes RootArgs.push_back(OutPtr); 697881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes } 6984102bec56151fb5d9c962fb298412f34a6eacaa8Tobias Grosser } 6997b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser 700881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes // Inputs 70174a4b08235990916911b8fe758d656c1171faf26Stephen Hines 702881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes if (NumInputs > 0) { 703881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *Offset = Builder.CreateSub(IV, Arg_x1); 704881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 705881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes for (size_t Index = 0; Index < NumInputs; ++Index) { 706881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *InOffset = Builder.CreateMul(Offset, InSteps[Index]); 707881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes llvm::Value *InPtr = Builder.CreateGEP(InBasePtrs[Index], InOffset); 708881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 709881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes InPtr = Builder.CreatePointerCast(InPtr, InTypes[Index]); 710881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 711c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes llvm::Value *Input; 712c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes 713c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes if (InIsStructPointer[Index]) { 714c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes Input = InPtr; 715c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes 716c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes } else { 717c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes llvm::LoadInst *InputLoad = Builder.CreateLoad(InPtr, "input"); 718c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes 719c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes if (gEnableRsTbaa) { 720c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes InputLoad->setMetadata("tbaa", TBAAAllocation); 721c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes } 722881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 723c43e1ba9cf40277dd496fe503e777906d2755251Chris Wailes Input = InputLoad; 724881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes } 725881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes 726881cda4f5b793a1e7f7d33cf4a31efc3fdbba4fdChris Wailes RootArgs.push_back(Input); 7279c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines } 7287ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines } 7297ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 730e4a73f68e1b338881adf682c458e0b4b92ecd91eTobias Grosser llvm::Value *X = IV; 731d88177580db4ddedf680854c51db333c97eabc59Stephen Hines if (bcinfo::MetadataExtractor::hasForEachSignatureX(Signature)) { 7327ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines RootArgs.push_back(X); 7337ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines } 7347ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 7357ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines if (Y) { 7367ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines RootArgs.push_back(Y); 7377ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines } 7387ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 739bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Value *RetVal = Builder.CreateCall(Function, RootArgs); 7407ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 7417b6629024395bf085ca64fcd5c69d2ded95e8d18Tobias Grosser if (OutPtr && !PassOutByReference) { 74218a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser llvm::StoreInst *Store = Builder.CreateStore(RetVal, OutPtr); 7439c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines if (gEnableRsTbaa) { 7449c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines Store->setMetadata("tbaa", TBAAAllocation); 7459c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines } 7467ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines } 7477ae3a828fade4e30f7940415949f33ac1f15dc77Stephen Hines 748db169187dea4602e4ad32058762d23d474753fd0Stephen Hines return true; 749db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 750db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 75118a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// @brief Checks if pointers to allocation internals are exposed 75218a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// 75318a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// This function verifies if through the parameters passed to the kernel 75418a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// or through calls to the runtime library the script gains access to 75518a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// pointers pointing to data within a RenderScript Allocation. 75618a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// If we know we control all loads from and stores to data within 75718a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// RenderScript allocations and if we know the run-time internal accesses 75818a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// are all annotated with RenderScript TBAA metadata, only then we 75918a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// can safely use TBAA to distinguish between generic and from-allocation 76018a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// pointers. 761bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes bool allocPointersExposed(llvm::Module &Module) { 76218a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // Old style kernel function can expose pointers to elements within 76318a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // allocations. 76418a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // TODO: Extend analysis to allow simple cases of old-style kernels. 76525eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines for (size_t i = 0; i < mExportForEachCount; ++i) { 76625eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines const char *Name = mExportForEachNameList[i]; 76725eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines uint32_t Signature = mExportForEachSignatureList[i]; 768bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes if (Module.getFunction(Name) && 769d88177580db4ddedf680854c51db333c97eabc59Stephen Hines !bcinfo::MetadataExtractor::hasForEachSignatureKernel(Signature)) { 77018a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser return true; 77118a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser } 77218a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser } 77318a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 77418a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // Check for library functions that expose a pointer to an Allocation or 77518a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // that are not yet annotated with RenderScript-specific tbaa information. 77618a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser static std::vector<std::string> Funcs; 77718a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 77818a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // rsGetElementAt(...) 77918a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser Funcs.push_back("_Z14rsGetElementAt13rs_allocationj"); 78018a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser Funcs.push_back("_Z14rsGetElementAt13rs_allocationjj"); 78118a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser Funcs.push_back("_Z14rsGetElementAt13rs_allocationjjj"); 78218a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // rsSetElementAt() 78318a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser Funcs.push_back("_Z14rsSetElementAt13rs_allocationPvj"); 78418a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser Funcs.push_back("_Z14rsSetElementAt13rs_allocationPvjj"); 78518a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser Funcs.push_back("_Z14rsSetElementAt13rs_allocationPvjjj"); 78618a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // rsGetElementAtYuv_uchar_Y() 78718a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser Funcs.push_back("_Z25rsGetElementAtYuv_uchar_Y13rs_allocationjj"); 78818a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // rsGetElementAtYuv_uchar_U() 78918a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser Funcs.push_back("_Z25rsGetElementAtYuv_uchar_U13rs_allocationjj"); 79018a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser // rsGetElementAtYuv_uchar_V() 79118a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser Funcs.push_back("_Z25rsGetElementAtYuv_uchar_V13rs_allocationjj"); 79218a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 79318a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser for (std::vector<std::string>::iterator FI = Funcs.begin(), 79418a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser FE = Funcs.end(); 79518a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser FI != FE; ++FI) { 796bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Function *Function = Module.getFunction(*FI); 79718a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 798bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes if (!Function) { 79918a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser ALOGE("Missing run-time function '%s'", FI->c_str()); 80018a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser return true; 80118a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser } 80218a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 803bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes if (Function->getNumUses() > 0) { 80418a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser return true; 80518a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser } 80618a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser } 80718a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 80818a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser return false; 80918a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser } 81018a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 81118a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// @brief Connect RenderScript TBAA metadata to C/C++ metadata 81218a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// 81318a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// The TBAA metadata used to annotate loads/stores from RenderScript 81418a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// Allocations is generated in a separate TBAA tree with a "RenderScript TBAA" 81518a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// root node. LLVM does assume may-alias for all nodes in unrelated alias 81618a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// analysis trees. This function makes the RenderScript TBAA a subtree of the 81718a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// normal C/C++ TBAA tree aside of normal C/C++ types. With the connected trees 81818a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// every access to an Allocation is resolved to must-alias if compared to 81918a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser /// a normal C/C++ access. 820bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes void connectRenderScriptTBAAMetadata(llvm::Module &Module) { 821bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::MDBuilder MDHelper(*Context); 822bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::MDNode *TBAARenderScript = 823bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes MDHelper.createTBAARoot("RenderScript TBAA"); 82418a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 825bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::MDNode *TBAARoot = MDHelper.createTBAARoot("Simple C/C++ TBAA"); 826bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::MDNode *TBAAMergedRS = MDHelper.createTBAANode("RenderScript", 827bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes TBAARoot); 82818a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 82918a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser TBAARenderScript->replaceAllUsesWith(TBAAMergedRS); 83018a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser } 83118a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 832bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes virtual bool runOnModule(llvm::Module &Module) { 833bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes bool Changed = false; 834bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes this->Module = &Module; 835bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes this->Context = &Module.getContext(); 836bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 837bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes this->buildTypes(); 838bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes 839bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes bcinfo::MetadataExtractor me(&Module); 84025eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines if (!me.extract()) { 84125eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines ALOGE("Could not extract metadata from module!"); 84225eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines return false; 84325eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines } 84425eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines mExportForEachCount = me.getExportForEachSignatureCount(); 84525eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines mExportForEachNameList = me.getExportForEachNameList(); 84625eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines mExportForEachSignatureList = me.getExportForEachSignatureList(); 847db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 848bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes bool AllocsExposed = allocPointersExposed(Module); 84918a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 85025eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines for (size_t i = 0; i < mExportForEachCount; ++i) { 85125eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines const char *name = mExportForEachNameList[i]; 85225eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines uint32_t signature = mExportForEachSignatureList[i]; 853bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes llvm::Function *kernel = Module.getFunction(name); 854cd5b657c39a348bd7652a19c5be5035e9df44a42Tobias Grosser if (kernel) { 855d88177580db4ddedf680854c51db333c97eabc59Stephen Hines if (bcinfo::MetadataExtractor::hasForEachSignatureKernel(signature)) { 856cd5b657c39a348bd7652a19c5be5035e9df44a42Tobias Grosser Changed |= ExpandKernel(kernel, signature); 857acde6013e9c448547e59eed04afd2adbd9681a3aTobias Grosser kernel->setLinkage(llvm::GlobalValue::InternalLinkage); 858acde6013e9c448547e59eed04afd2adbd9681a3aTobias Grosser } else if (kernel->getReturnType()->isVoidTy()) { 859cd5b657c39a348bd7652a19c5be5035e9df44a42Tobias Grosser Changed |= ExpandFunction(kernel, signature); 860acde6013e9c448547e59eed04afd2adbd9681a3aTobias Grosser kernel->setLinkage(llvm::GlobalValue::InternalLinkage); 861acde6013e9c448547e59eed04afd2adbd9681a3aTobias Grosser } else { 862acde6013e9c448547e59eed04afd2adbd9681a3aTobias Grosser // There are some graphics root functions that are not 863acde6013e9c448547e59eed04afd2adbd9681a3aTobias Grosser // expanded, but that will be called directly. For those 864acde6013e9c448547e59eed04afd2adbd9681a3aTobias Grosser // functions, we can not set the linkage to internal. 865acde6013e9c448547e59eed04afd2adbd9681a3aTobias Grosser } 866cc366e573e31f43a6101fd6e04b90c6afdc3b7a7Stephen Hines } 867db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 868db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 8699c5263e00d89dfdd25d3a1706eb319e8529ec604Stephen Hines if (gEnableRsTbaa && !AllocsExposed) { 870bdbff6e600b0d834e4770f65c7d2df93d7ef305cChris Wailes connectRenderScriptTBAAMetadata(Module); 87118a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser } 87218a38a3fc6fad8355891b771dd3c6537fa8699ecTobias Grosser 873cc366e573e31f43a6101fd6e04b90c6afdc3b7a7Stephen Hines return Changed; 874db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 875db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 876db169187dea4602e4ad32058762d23d474753fd0Stephen Hines virtual const char *getPassName() const { 877db169187dea4602e4ad32058762d23d474753fd0Stephen Hines return "ForEach-able Function Expansion"; 878db169187dea4602e4ad32058762d23d474753fd0Stephen Hines } 879db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 8807a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao}; // end RSForEachExpandPass 881db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 8827a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao} // end anonymous namespace 8837a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao 8847a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liaochar RSForEachExpandPass::ID = 0; 885db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 886db169187dea4602e4ad32058762d23d474753fd0Stephen Hinesnamespace bcc { 887db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 8887a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liaollvm::ModulePass * 88925eb586bb055ae07c7e82a2b1bdbd6936641580cStephen HinescreateRSForEachExpandPass(bool pEnableStepOpt){ 89025eb586bb055ae07c7e82a2b1bdbd6936641580cStephen Hines return new RSForEachExpandPass(pEnableStepOpt); 8917a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao} 892db169187dea4602e4ad32058762d23d474753fd0Stephen Hines 8937a66e6cbb1ae32cd56b19822c4e66560deb857dbShih-wei Liao} // end namespace bcc 894